EXTRACTION OF NATURAL DYES AND THEIR UTILIZATION ON SILK AND COTTON FIBRES

Natural dyes, ie., Khair, Dab shell, Banana stem dyes were isolated and blended with another natural dye like Lac dye. The blended dyes were applied on silk and cotton fibres. On silk, the blended dyes produced deep chocolate colour with catechu brown dye of  Khair, deep brown with dab shell and deep red with banana stem dye, on cotton the colour and shade changed to reddish brown, light reddish brown and medium reddish brown respectively. The similar effect was observed on both mordant silk and cotton fibres at the same reaction conditions and the shades were fast to sun light and wash.